Need Help
1977 Suzuki GS750 - Pod Filters 4-1 Exhaust
I had low compression. Found 0 valve clearance. Sent head to machine shop to grind valves (thinnest shims were not enough) and replace valve seals / machine the seats.
After re installation I had a ton of white smoke with a combustion odor from the crankcase breather. Assumed it was worn rings (65k miles) and now that the valves were sealing it was now causing blow by.
Had shop gap rings and hone cylinders. Re installed everything and did proper break in procedure on first ride. (Ran well enough to complete break in before it started to run poorly) I still have a ton of white smoke from pcv breather. (Did not clean the two tiny filters under the pcv cover)
Also, Bike runs well once at temperature l. But within about 10-15 min into ride the bike does not want to idle, losses damn near all power and backfires from exhaust / pod filters.
It is currently 90+ degrees here.
I can hear the gas tank venting and when removing the cap it nearly blows off.
Any thoughts on the white smoke from pcv breather / excessive fuel tank pressure / runs poorly when hot.
As for the running rough / fuel tank pressure I am wondering if I could be dealing with a vapor lock situation but if it is due to the outside temps I dont know how to overcome that.
for the smoke. You would think rings or valves / valve seals but that has all been done. (Oil level checked and okay - not overfilled)
Appreciate your help!!!
1977 Suzuki GS750 - Pod Filters 4-1 Exhaust
I had low compression. Found 0 valve clearance. Sent head to machine shop to grind valves (thinnest shims were not enough) and replace valve seals / machine the seats.
After re installation I had a ton of white smoke with a combustion odor from the crankcase breather. Assumed it was worn rings (65k miles) and now that the valves were sealing it was now causing blow by.
Had shop gap rings and hone cylinders. Re installed everything and did proper break in procedure on first ride. (Ran well enough to complete break in before it started to run poorly) I still have a ton of white smoke from pcv breather. (Did not clean the two tiny filters under the pcv cover)
Also, Bike runs well once at temperature l. But within about 10-15 min into ride the bike does not want to idle, losses damn near all power and backfires from exhaust / pod filters.
It is currently 90+ degrees here.
I can hear the gas tank venting and when removing the cap it nearly blows off.
Any thoughts on the white smoke from pcv breather / excessive fuel tank pressure / runs poorly when hot.
As for the running rough / fuel tank pressure I am wondering if I could be dealing with a vapor lock situation but if it is due to the outside temps I dont know how to overcome that.
for the smoke. You would think rings or valves / valve seals but that has all been done. (Oil level checked and okay - not overfilled)
Appreciate your help!!!